The sector is held by Alaska Airlines and Delta Air Lines.
Airport pair · hand carry reference
FCO Rome to SEA Seattle
Leonardo da Vinci Fiumicino, Italy, to Seattle Tacoma International, the United States. Computed from the scheduled network held on 2026-09-07.
- Nonstop
- About twice a day
- Great circle
- 9,130 km
- Block, estimated
- 11h 30m
- Door to door
- 18h 15m
What FCO to SEA looks like
The FCO to SEA sector, the carriers on it and the flying time, before anything is promised to anybody.
Rome FCO to Seattle SEA is an ultra long sector of 9,130 km by great circle, flown nonstop about twice a day.
At the cruise speed this site models for 9,130 km, 880 km an hour, and thirty minutes of taxi at the two ends, the flight blocks at about 11h 30m.
Rome FCO is a major hub in the network held here, 232 scheduled destinations and 618.2 departures a day. Seattle SEA has 145 destinations and 717.9 departures a day.
Seattle is 9 hours behind of Rome all year.
The pair sits between the Americas and Europe, a corridor where the site already publishes 36 written lanes that go into customs and ground detail this page does not.
Who flies the sector, and how often
Average daily frequencies on FCO to SEA from the scheduled route statistics, both directions, with the operating carriers named.
| Direction | Flights a day | Flights a week | Operated by |
|---|---|---|---|
| FCO to SEA | 2.29 | 16 | Alaska Airlines, Delta Air Lines |
| SEA to FCO | 1.86 | 13 | Alaska Airlines, Delta Air Lines |
Two carriers hold the sector, Alaska Airlines and Delta Air Lines, which gives a missed departure somewhere to go without leaving the nonstop.
Between them the two directions put about 29.1 departures a week on FCO to SEA, which is the number that decides whether a seat can be found today or on Thursday.
The clock from collection to signature
The same ground timings the route calculator starts from, applied to the 11h 30m block time on FCO to SEA. Change any of them in the tool further down and the total moves with them.
| Stage | Allowed | Elapsed |
|---|---|---|
| Collection and the run to FCO | 90 min | 1h 30m |
| At FCO before departure | 180 min | 4h 30m |
| FCO to SEA in the air, estimated | 690 min | 16h 00m |
| Formalities at SEA | 90 min | 17h 30m |
| Delivery run in Seattle | 45 min | 18h 15m |
| Door to door | 1,095 min | 18h 15m |
On the desk standard ground timings, ninety minutes to collect and reach the airport, three hours at the airport before departure, ninety minutes of arrival formalities and a forty five minute delivery run, the door to door figure for FCO to SEA is 18h 15m.
A courier who leaves Rome at 09:00 local is on the ground in Seattle at about 11:30 local and at the door by 13:45 the same day.
Working backwards from a six in the evening handover in Seattle, the last useful departure from Rome is around 13:15 local.
At 18h 15m the mission is past the sixteen hour duty day a single courier is planned against, so it is quoted with a rest at the far end or with a second courier, and never as a turnaround.
When the nonstop does not work
Every airport that joins the two ends, ranked by when they land, among the ones whose weaker leg is dependable enough to plan on. Connection time is allowed for the size of the hub. 40 of them join FCO to SEA.
| Connecting at | FCO to hub, flights a day | Hub to SEA, flights a day | Track, km | Estimated, gate to gate |
|---|---|---|---|---|
| Reykjavik KEF | 1.14 | 4.29 | 9,130 | 13h 00m |
| Dublin DUB | 5.86 | 1.14 | 9,169 | 13h 26m |
| Calgary YYC | 0.86 | 6.71 | 9,176 | 13h 30m |
| Frankfurt FRA | 13.43 | 2.29 | 9,155 | 13h 35m |
| Amsterdam AMS | 7.29 | 2.43 | 9,137 | 13h 36m |
| Paris CDG | 13.14 | 2 | 9,150 | 13h 36m |
One nonstop a day means one chance a day, so the connections below are what a consignment that arrives at FCO in the afternoon actually flies on.
40 airports connect the two ends on the scheduled network held here. The quickest of the dependable ones is Reykjavik KEF, where the weaker of the two legs still runs about once a day.
Through KEF the routing covers 9,130 km against the 9,130 km nonstop track and takes about 13h 00m in the air and on the ground at the hub, allowing 60 minutes to connect at an airport of that size.
That is only 1h 30m more than the nonstop, which is close enough that a connection is worth taking when the nonstop is full or badly timed.
Behind it, Dublin DUB at 13h 26m and Calgary YYC at 13h 30m hold the same connection, so a booking has three hubs to try before it has to wait for the nonstop.
If nothing suitable leaves Rome, Rome CIA is 29 km away by great circle and carries 47 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
If nothing suitable leaves Seattle, Victoria YYJ is 157 km away by great circle and carries 22 scheduled destinations of its own, which is usually a shorter road transfer than a lost day.
Industry within reach of the two ends
Public manufacturing and research sites whose logistics run through FCO or SEA. Listed as industrial geography, not as customers of anyone.
- Boeing, Everett and RentonWidebody and 737 final assembly. A European supplier base and an American line, eight time zones apart. Logistics through Seattle SEA.
Plan Rome to Seattle yourself
The same tool the dispatchers use, open to anybody and free. It is loaded with this pair already. Change either end, add a stopover or a preferred airline, and it works out the connection, the transit and the door to door clock, with the real departures underneath. Put it on your own site if it is useful to you.
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Restrictions
Where this came from, and where to look next
- Carriers and frequencies: AeroDataBox scheduled route statistics, retrieved 2026-09-07. Average daily flights, not a timetable.
- Distances: great circle from published coordinates. They read short against a flown track, which is why the block time above applies a factor to them.
- Block and connection times: the same model the route calculator lower down this page runs, at the same rounding.
- Restrictions: the airport notes file, checked 2026-09-07.
- Industrial sites: public company information. Nothing here says or implies that any company named is a customer of any courier operator.
Who publishes this. OnBoard Courier is a placement desk in Dubai. An assignment is carried out by a vetted partner operator, with the desk as the single point of contact from the quote to the signature. This page exists because our own dispatchers need the answer for FCO to SEA in the twenty minutes before a promise is made, and a reference only one operator can read is not a reference. Free to read, quote and cite. Found an error? Tell us and we will correct it.
If you need something moved rather than looked up, the desk prices a hand carry in fifteen minutes.
- The FCO airport entry
- The SEA airport entry
- Hand carry into Italy
- Hand carry into the United States
- The written lane, Dubai to Rome
- The written lane, Munich to Rome
- The written lane, Dubai to Seattle
- The route calculator
More pairs through FCO and SEA: Madrid to Rome, Barcelona to Rome, Frankfurt to Rome, Paris to Rome, London to Rome, Amsterdam to Rome, Sao Paulo to Rome, Zurich to Rome.